The first control chart; The first Q.C. GapWalter A Shewhart, 1924, and the Hawthorne factory

Setting the stage: It all began 90 years ago ...."The year 1924—at a factory in Cicero, Illinois—saw the start of two of the most important developments ever in managerial thinking. In May that year Walter Shewhart described the first control chart which launched statistical process control and quality improvement. In November of that year there began a series of research projects which came to be known as the Hawthorne studies. ..." Read more http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2464836/

Apparently the gap between theory and practice is not a new phenomenon.“Shewhart was a skilled theoretician, but could not successfully convey quality ideas to the manufacturing work force.”

Please note. I am not being critical of any individual person, institution or organization. I want to express my most sincere respect, admiration and appreciation to Dr. Westgard and so many others. This process does not contradict today's published recommended, principles and processes; it just implements them differently.